Euro-zone governments have around three months to ensure the survival of the single currency, billionaire investor George Soros said in a speech on Saturday.

“We are at an inflection point. After the expiration of the three months’ window, the markets will continue to demand more but the authorities will not be able to meet their demands,” he warned in a speech at the Festival of Economics in Trento, Italy. (Read the text of his speech.)

The European Union is “like a bubble” – not a financial bubble but a political bubble — that could pop as a result of the euro -zone crisis, Soros said.

“In the boom phase, the EU was what the psychoanalyst David Tuckett calls a ‘fantastic object’ – unreal but immensely attractive,” he said.